I was just wondering what the different colored (silver, gold, blue) bolts mean. I know the number/marks on the top of the bolt indicate the bolts class. I was just wondering if lets say a class 8 or 10.9 is always the blue color because it is made out of a stronger alloy? Or can it be the other the other two colors (silver,gold) and still be just as strong and in the same class but the blue color is just a film on the outside of the bolt to prevent weathering better?
2006-07-01
02:53:34
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6 answers
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asked by
Anonymous
in
Do It Yourself (DIY)